Firebeetle 2 High power consumption during deep sleep

hi;

previously I had Firebeetle ESP32 (DFR 0478) which used to consume 11uA during deep sleep as expected, i have purchased qty 2 Firebeetle 2 ESP32-E N16R2 (DFR 1139)

and with same setup both are consuming 174 uA during deep sleep even after cutting the low power pad far away from the 10uA mentioned in product data sheet.

I am using NORDIC PPK II to measure the current, Arduino IDE ver. 1.8.10 running on window platform, and the basic deep sleep sketch without any sensors connected to the board. kindly advise what could the problem be?